//import java.sql.Array;
//import java.util.Arrays;
//
//////class Dogs{
//////    public int age;
//////    public String color;
//////    public String name;
//////}
//////public class pr {
//////    public static void main(String[] args) {
//////Dogs dog1=new Dogs();
//////dog1.age=10;
//////dog1.name="sah";
//////dog1.color="蓝色";
//////        System.out.print(dog1.age);
//////        System.out.print(dog1.color);
//////    }
//////}
////
//////public class pr {
//////    private static void swap(Dogs dogs1, Dogs dogs2) {
//////        int tem;
//////        tem=dogs1.age;
//////        dogs1.age=dogs2.age;
//////        dogs2.age=tem;
//////    }
//////    public static void main(String[] args) {
//////        Dogs dog1=new Dogs();
//////        Dogs dog2=new Dogs();
//////        dog1.age=10;
//////        dog2.age=20;
//////        System.out.println(dog1.age);
//////        System.out.println(dog2.age);
//////        swap(dog1,dog2);
//////        System.out.println(dog1.age);
//////        System.out.println(dog2.age);
//////    }
//////}
////public class pr{
////    public int year;
////    public int month;
////    public int day;
////    public pr(){
////        this.year=2023;
////    }
////    public static void main(String[] args) {
////        pr nate=new pr();
//////        pr2 date=new pr2();
//////        date.setnum(2023,11,25);
//////        date.printdate();
//////        pr2 date2=new pr2();
//////        date.setnum(1945,01,15);
//////        date.printdate();
////
////    }
////
//////    public static void main(String[] args) {
//////       pr2 Date=new pr();
//////        .year=2023;
//////        .month=11;
//////        .day=25;
//////        System.out.println("年："+ox.year+"月:"+ox.month+"日:"+ox.day);
//////    }
////}
//    public class pr{
////        public int year;
////        public int month;
////        public int day;
////           public pr(){
////           this(2023,2,3);
////           this.year=2023;
////           this.month=2;
////           this.day=12;
////            System.out.println("asdbujhio");
//    //}
////        public  pr(int year,int month,int day){
////            this.year=year;
////            this.month=month;
////            this.day=day;
////            System.out.println("被执行");
////            printDate();
////        }
////      public void printDate(){
////     System.out.println(year + "-" + month + "-" + day);
////}
////        public static void main(String[] args) {
//////            pr date=new pr(2021,11,5);
////              pr date1=new pr();
////        }
//public static void main(String[] args) {
////    int[]arr={1,2,3,4};
////    int[]arr1={1,2,3,4,5,6,7};
////    transom(arr);
////    System.out.println(Arrays.toString(arr));
////    fun(arr1);
////    System.out.println(Arrays.toString(arr1));
//    int []arr={5,5,5,5,5,5,2,1,3,9,5,5,5};
//   int n=fun3(arr);
//    System.out.println(n);
//    if(n==5){
//    boolean fal=true;
//    System.out.println(fal);
//}
//
//}
//public static int fun3(int[]arr){
//    Arrays.sort(arr);
//    return arr[arr.length/2];
//}
//public static void fun(int[]arr){
//    int i=0,j= arr.length-1;
//    int tem=0;
//    while(i<j){
//while(i<j&&arr[i]%2!=0){
//    i++;
//}
//while(i<j&&arr[j]%2==0){
//    j--;
//}
//
//tem=arr[i];
//arr[i]=arr[j];
//arr[j]=tem;
//
//    }
//}
//    public  static void transom(int []arr){
//               for(int i=0;i<arr.length;i++){
//                   arr[i]*=2;
//               }
//
//    }
//    }
public class pr {
        pr max=new pr();

}